<h2 class="text-center">{{ problem.title }}</h2>

<p class="text-muted text-center">
    发布时间: {{ problem.create_time }}&nbsp;&nbsp;
    {% if problem.last_update_time %}最后更新: {{ problem.last_update_time }}&nbsp;&nbsp;{% endif %}
    时间限制: {{ problem.time_limit }}ms&nbsp;&nbsp;
    内存限制: {{ problem.memory_limit }}M
    {% if problem.spj %}
        &nbsp;&nbsp;<span class="label label-info">SPJ</span>
    {% endif %}
</p>